1/*
2 * Copyright 2014 VMware, Inc.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sub license, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial portions
15 * of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
20 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
21 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
22 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
23 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 */
25
26
27#ifndef U_PRIM_RESTART_H
28#define U_PRIM_RESTART_H
29
30
31#include "pipe/p_defines.h"
32
33
34#ifdef __cplusplus
35extern "C" {
36#endif
37
38
39struct pipe_context;
40struct pipe_draw_info;
41union pipe_index_binding;
42struct pipe_resource;
43
44void
45util_translate_prim_restart_data(unsigned index_size,
46                                 void *src_map, void *dst_map,
47                                 unsigned count, unsigned restart_index);
48
49enum pipe_error
50util_translate_prim_restart_ib(struct pipe_context *context,
51                               const struct pipe_draw_info *info,
52                               const struct pipe_draw_indirect_info *indirect,
53                               const struct pipe_draw_start_count_bias *draw,
54                               struct pipe_resource **dst_buffer);
55
56struct pipe_draw_start_count_bias *
57util_prim_restart_convert_to_direct(const void *index_map,
58                                    const struct pipe_draw_info *info,
59                                    const struct pipe_draw_start_count_bias *draw,
60                                    unsigned *num_draws,
61                                    unsigned *min_index,
62                                    unsigned *max_index,
63                                    unsigned *total_index_count);
64
65enum pipe_error
66util_draw_vbo_without_prim_restart(struct pipe_context *context,
67                                   const struct pipe_draw_info *info,
68                                   unsigned drawid_offset,
69                                   const struct pipe_draw_indirect_info *indirect,
70                                   const struct pipe_draw_start_count_bias *draw);
71
72static inline unsigned
73util_prim_restart_index_from_size(unsigned index_size)
74{
75   /* 1 -> 0xff, 2 -> 0xffff, 4 -> 0xffffffff */
76   return 0xffffffffu >> 8 * (4 - index_size);
77}
78
79#ifdef __cplusplus
80}
81#endif
82
83#endif
84